DDW-2025-002015

Utah Department of Environmental Quality
Division of Drinking Water
Minimum Sizing Standards

Date Standard Effective: Mon Mar 03 10:27:19 MST 2025
Peak Day Source Demand per ERC (gal/day): 580
Average Annual Demand per ERC (gal/day): 112,259
Equalization Storage per ERC (gal/day): 308
FAIRVIEW CITY WATER SYSTEM PWS ID: UTAH20012
Admin Name: JUSTIN K JACKSON
Address:
City, State, Zip: ,
Phone: [phone]
Email: [e-mail]
System Type: Community
Population: 2,092
MINIMUM SIZING STANDARD
MINIMUM SIZING STANDARD CALCULATIONS VARIABILITY
Data from these reporting years: 2018, 2019, 2020, 2021,
2022, 2023
Peak Day Source Demand per ERC (gal/day): 580
Average Annual Demand per ERC (gal/year): 112,259
Equalization Storage per ERC (gal): 308
x
x
x
(1 + 0.0)
(1 + 0.0)
(1 + 0.0)
=
=
=
580
112,259
308
DWRi WATER USE DATA REPORTED
Equalization per ERC (gal): 308
Existing Storage (gal): 1,250,000
ERCs: 774
Required Storage w/o Fire Flow: 238,392
Required Fire Storage (gal): 200,000
Required Storage w/Fire (gal): 438,392
Storage Deficiency: 0
Storage Deficiency (%): 0.0
No Storage Deficiency
Year Peak
Day
Source
Demand
(gal/day)
Average
Annual
Demand
(gallons)
ERCs Peak
Demand
per ERC
(gal/day)
Avg
Annual
Demand
per ERC
(gal/day)
Equaliza
tion
Storage
per ERC
(gal/day)
OP
Days
2023 338,885 72,716,909.16 774 438 93,926 257 365
2022 312,816 66,757,094.37 734 426 90,955 249 365
2021 338,885 67,144,857.06 723 469 92,872 254 365
2020 309,558 71,840,369.97 732 423 98,144 268 366
2019 319,333 74,137,619.52 697 458 106,297 291 365
2018 397,538 76,878,026.43 685 580 112,259 308 365
Variability:0.13 0.0 0.0 0.0
Year Peak Month Average
(gal/day)
Peak Month Average
per ERD (gal/day)
Ratio of PD/ERC to
Peak Month Avg/ERC
2023 315,655 408 1.07
2022 242,601 331 1.29
2021 318,030 440 1.07
2020 307,245 420 1.01
2019 275,711 395 1.16
2018 293,055 428 1.36
CAPACITY CALCULATIONS FOR STORAGE
CAPACITY CALCULATIONS FOR SOURCES
Peak Day Source Demand per ERC (gpm): 0.4
Existing Source Capacity (gpm): 612
ERCs: 774
Required Source Capacity (gpm): 310
Source Deficiency: 0
Source Deficiency (%): 0.0
No Source Deficiency
SYSTEM STORAGE AND SOURCE INVENTORY
Storage ID Storage Name Effective Volume (GAL)
ST001 STORAGE FACILITY ST001 250,000
ST002 STORAGE FACILITY ST002 500,000
ST003 STORAGE FACILITY ST003 500,000
Storage Totals: 1,250,000 GAL
Source ID Source Name Flow Rate (GPM)
WS004 LOWER WELL 1 427
WS008 WELL 4 80
WS001 UPPER TOLLGATE SPRING 95.3
WS002 LOWER TOLLGATE SPRING 9.7
WS003 LITTLE BEAR SPRING
Source Totals: 612 GPM